your friend says that there is a kind of fue that only dries when it is exposed to a special type of light.can light cause glue to dry?

Answer:

78 kPa

Explanation:

The total pressure is the sum of the partial pressures:

240 = Pa + Pb + Pc

240 = 107 + 55 + Pc

Pc = 78 kPa

Answer:

78 kPa

Explanation:

Answer:

b- freezing water

Explanation:

Solid<liquid<gas is the general rule for entropy increase

Freezing water would change the phase from liquid to solid which would lead to less entropy

Aid is money given to students for education funding which may not be paid back.

The term aid may be used to refer to money given to a person for a particular purpose which the person may not be required to pay back. Often students are given this sort of assitance to fund their education.

Hence, grants given to students to finance their education which they may not pay back are called aid.

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Answer: –1,267.2 kJ

Explanation: B on edge, thank me later ;-)

–1,267.2 kJ is the enthalpy of the given reaction. Therefore, the correct option is option A among all the given options.

Enthalpy is a thermodynamic system's internal energy total as well as the volume times pressure ratio. Enthalpy is a property or state function that resembles energy; it has the same dimensions as energy and is therefore measured in joules or ergs. The value of enthalpy is solely dependent on the temperature, pressure, as well as composition of the system, not on its history.

The shift in the internal energy equals equivalent to the heat transmitted to, much less than the jobs completed by, the system, in accordance with the principle of energy conservation. The enthalpy change is precisely equal to the heat transmitted to the system if the sole work performed is a change in volume at constant pressure.

ΔH = ΔH for product - ΔH for reactant

     = 3,572.1 kJ –1,267.2 kJ

    = –1,267.2 kJ

Therefore, the correct option is option A.

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Answer: it is a good conductor of electriciy tht is what wires are made of and it is a good conductor of heat so it will be able to handle the heat from the electricity

Explanation:

Answer:

Iron is a shiny, bright white metal that is soft, malleable, ductile and strong. Its surface is usually discolored by corrosion, since it combines readily with the oxygen of the air in the presence of moisture. In absolutely dry air, it does not rust

Explanation:

I hope it helps

Answer:

Kp = 4.5 x 10⁻⁹

Explanation:

from equilibrium of gas phase rxns, Kp = Kc(R·T)^-Δn

2NH₃(g) ⇄ 3H₂(g) + N₂(g)

 2Vm          3Vm      1Vm

Δn = ∑Vm(products) - ∑Vm(reactants) = (3Vm + 1Vm) - 2Vm = 2Vm = +2

Kc = Kb = [H₂]³[N₂]/[NH₃]² = 1.8 x 10⁻⁵M²

R = 0.08206 L·atm/mol·K

T = 500°C = (500 + 273)K = 773K

Kp = Kb(R·T)^-Δn = 1.8 x 10⁻⁵M²[(0.08206L·atm/mol·K)(773K)]⁻⁽⁺²⁾

= (1.8 x 10⁻⁵mol²/L²)(63.43atm/mol)⁻²

= 4.5 x 10⁻⁹atm

Hope this helps. :-)

Answer:

Sunspots are cooler and darker than the rest of the Sun's surface. They are marked by intense magnetic activity. Solar prominences are the plasma loops that connect two sunspots. Solar flares and coronal mass ejections are eruptions of highly energetic particles from the Sun's surface.

Explanation:

Answer:

Sunspots are dark areas on the surface of the Sun that are cooler than surrounding areas. They appear in groups, vary in size, and cycle in number over an 11-year period. Solar flares are sudden eruptions of energy from a small area of the Sun's surface. They are extremely hot (10 to 20 million degrees Celsius) and extend into the corona. Solar flares occur near sunspots and can disturb radio communications on Earth.

Explanation:

Answer:

Number one is the most acidic, the one in the middle is neutral, and number nine is alkaline.

Answer:

OK

Explanation:

OK

Answer:

H, Na, N

Explanation:

Answer:

H, NA, N

Explanation

Answer:

40.7 kJ

Explanation:

Applying,

q = c'n.................. Equation 1

Where q = Thermal Heat, c' = Heat of vaporization of water, n = number of mole of water.

But,

n = mass(m)/Molar mass(m')

n = m/m'............... Equation 2

Substitute equation 2 into equation 1

q = c'(m/m')............. Equation 3

Given: c' = 40.650 KJ/mol, m = 18.02 g

Constant: m' = 18 g/mol

Substitute into equation 3

q = 40.650(18.02/18)

q = 40.695 kJ

q ≈ 40.7 kJ

Answer:

5.168 L

Explanation:

Applying Charles Law,

V/T = V'/T'..................... Equation 1

Where V = Initial Volume, T = Initial Temperature in Kelvin, V' = Final Volume, T' = Final Temperature in Kelvin,

Make V' the subject of the equation,

V' = VT'/T................. Equation 2

From the question,

Given: V = 5L, T = 25°C = (25+273) = 298K, T' = 35°C = (35+273) = 308K

Substitute these values into equation 2

V' = (5×308)/298

V' = 5.168 L

Did you ever get the answer

Answer:

The answer should be 2 because to balance the equation you should have to change to equation to this; 2Al + 3Br2 => 2AlBr3, so that there is a total of 2 Aluminums and 6 Bromiums on either side of the equation.

Explanation:

In the given chemical equation, the coefficient of bromine is 2.

Chemical equation is a symbolic representation of a chemical reaction which is written in the form of symbols and chemical formulas.The reactants are present on the left hand side while the products are present on the right hand side.

A plus sign is present between reactants and products if they are more than one in any case and an arrow is present pointing towards the product side which indicates the direction of the reaction .There are coefficients present next to the chemical symbols and formulas .

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Answer:

As known matter is anything that occupies space and has mass.

Answer:

planet, star, solar system, galaxy, universe

plz mark me as brainliest.

Answer:

c. activated complex

Explanation:

Answer:

Pretty sure its True

Explanation:

I'm taking k12 astronomy

Answer:

A) chlorine

Explanation:

To solve this question we can use:

PV = nRT

In order to solve the moles of the gas. With the moles and the mass we can find the molar mass of the gas to have an idea of its identy:

PV = nRT

PV / RT = n

Where P is pressure: 603mmHg * (1atm / 760mmHg) = 0.7934atm

V = 100mL = 0.100L

R is gas constant = 0.082atmL/molK

T is absolute temperature = 14°C + 273.15 = 287.15K

0.7934atm*0.100L / 0.082atmL/molK*287.15K = n

3.37x10⁻³ moles of the gas

In 0.239g. The molar mass is:

0.239g / 3.37x10⁻³ moles = 70.9g/mol

The gas with this molar mass is Chlorine, Cl₂:

Answer:

they reduce viral transmission

They prevent asymptomatic spread

You're protecting others from illness.

They're mandated by law in some states

They're good hygiene in general

Answer:

c,e,f

Explanation:

Judging by what i tried to find out about this reaction, it seems that won't take place, though it could be wrong.

Answer: D.  [tex]1.0\times 10^{-8.43}M[/tex]

Explanation:

pH or pOH is the measure of acidity or alkalinity of a solution.

pH is calculated by taking negative logarithm of hydronium ion concentration.

[tex]pH=-\log [H_3O^+][/tex]

Putting in the values:

[tex]8.43=-\log[H_3O^+][/tex]

[tex][H_3O^+]=10^{-8.43}=3.7\times 10^{-9}M[/tex]

Thus [tex][H_3O^+][/tex] concentration is [tex]10^{-8.43}M[/tex]

Answer:

Multicellular organisms thus have the competitive advantages of an increase in size without its limitations. They can have longer lifespans as they can continue living when individual cells die. Multicellularity also permits increasing complexity by allowing differentiation of cell types within one organism.

Answer:I just want points

Explanation:because I need them for future questions